47216123 has 8 divisors (see below), whose sum is σ = 50207040. Its totient is φ = 44248960.

The previous prime is 47216101. The next prime is 47216137. The reversal of 47216123 is 32161274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47216123 - 2⁸ = 47215867 is a prime.

It is a super-2 number, since 2×47216123² = 4458724542302258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47216092 and 47216101.

It is not an unprimeable number, because it can be changed into a prime (47210123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1748 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (6275880).

Almost surely, 2^47216123 is an apocalyptic number.

47216123 is a deficient number, since it is larger than the sum of its proper divisors (2990917).

47216123 is a wasteful number, since it uses less digits than its factorization.

47216123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11877.

The product of its digits is 2016, while the sum is 26.

The square root of 47216123 is about 6871.3989114299. The cubic root of 47216123 is about 361.4349185570.

Adding to 47216123 its reverse (32161274), we get a palindrome (79377397).

It can be divided in two parts, 4 and 7216123, that added together give a palindrome (7216127).

The spelling of 47216123 in words is "forty-seven million, two hundred sixteen thousand, one hundred twenty-three".